Question

我已尝试在互联网上尝试所有可能的解决方案，但仍无法推动数据库的发布

编辑：有关进一步的代码审查，请访问github.com链接 https://github.com/flaminggenius/lit-fortress/blob/lit-fortress/src/server/server.js

我从heroku文档中得到了这个，但它没有做任何事情

    var con = "postgres://username:pass@host:port/database"; //yes I did actually get the credentials from heroku but I'm not putting them here
    pg.defaults.ssl = true;
    pg.connect(con, function(err, client) {
     if (err) {
      console.log (err);
      console.log ("POSTGRES FAILED TO CONNECT");
     }
     console.log('Connected to postgres! Getting schemas...');

  client
 .query('SELECT table_schema,table_name FROM information_schema.tables;')
.on('row', function(row) {
  console.log (JSON.stringify(row));
 });
});

如果我将client更改为

，这不会导致应用崩溃

client.query ("INSERT INTO users SET name='joey'");

该应用程序然后崩溃

任何人都可以帮助我这里有一些我需要回答的问题

1.如何正确建立连接 2.如何结束连接（pg.end？） 3.如何插入数据？ 4.如何检索数据

在有人说'＃34;你尝试了什么？＆＃34;对于nodeJS，heroku和pg以及代码以太网崩溃应用程序或无法工作的每个链接，我都进行了每次网络搜索的轻松集会....

这是日志

Dec 01 11:18:58 masswarfare-dev app/web.1:   syscall: 'connect', 
Dec 01 11:18:58 masswarfare-dev app/web.1:   address: '10.179.216.254', 
Dec 01 11:18:58 masswarfare-dev app/web.1:   port: 3306, 
Dec 01 11:18:58 masswarfare-dev app/web.1:   fatal: true } 
Dec 01 11:18:58 masswarfare-dev app/web.1: Connected to postgres!      Getting schemas... 
Dec 01 11:18:58 masswarfare-dev app/web.1: events.js:160 
Dec 01 11:18:58 masswarfare-dev app/web.1:       throw er; // Unhandled 'error' event 
Dec 01 11:18:58 masswarfare-dev app/web.1:       ^ 
Dec 01 11:18:58 masswarfare-dev app/web.1: error: syntax error at or near "SET" 
Dec 01 11:18:58 masswarfare-dev app/web.1:     at Connection.parseE (/app/node_modules/pg/lib/connection.js:554:11) 
Dec 01 11:18:58 masswarfare-dev app/web.1:     at  Connection.parseMessage (/app/node_modules/pg/lib/connection.js:381:17) 
Dec 01 11:18:59 masswarfare-dev app/web.1:     at TLSSocket.<anonymous> (/app/node_modules/pg/lib/connection.js:117:22) 
Dec 01 11:18:59 masswarfare-dev app/web.1:     at emitOne (events.js:96:13) 
Dec 01 11:18:59 masswarfare-dev app/web.1:     at TLSSocket.emit (events.js:188:7) 
Dec 01 11:18:59 masswarfare-dev app/web.1:     at readableAddChunk (_stream_readable.js:176:18) 
Dec 01 11:18:59 masswarfare-dev app/web.1:     at TLSSocket.Readable.push (_stream_readable.js:134:10) 
Dec 01 11:18:59 masswarfare-dev app/web.1:     at TLSWrap.onread (net.js:548:20) 
Dec 01 11:18:59 masswarfare-dev app/web.1: [19:18:58] [nodemon] app crashed - waiting for file changes before starting... `

的package.json

{
 "name": "masswarfare",
 "version": "1.0.0",
 "description": "A simple Agar.io clone",
 "main": "server/server.js",
"scripts": {
 "build": "gulp build",
 "start": "gulp run",
 "watch": "gulp watch",
 "test": "gulp test"
},
"repository": {
 "type": "git",
 "url":   "https://github.com/huytd/agar.io-clone.git"
 },
 "author": "Huy Tran",
 "license": "MIT",
 "contributors": [
  "Igor Antun <igorantunc@hotmail.com> (https://github.com/IgorAntun)",
  "Bjarne Oeverli <bjarne.oeverli@gmail.com> (https://github.com/bjarneo)",
   "Chris Morgan <chris.j.r.morgan@gmail.com> (https://github.com/drpotato)",
    "PET Computação UFPR <pet@inf.ufpr.br> (http://pet.inf.ufpr.br)",
   "Saren Currie <saren@sarencurrie.com> (https://github.com/SarenCurrie)",
   "Nguyen Huu Thanh <giongto35@yahoo.com> (https://github.com/giongto35)",
   "Ariamiro <dossantosgusmaosavio@gmail.com> (https://github.com/Ariamiro)",
  "VILLERS Mickaël <mickael.villers@epitech.eu> (https://github.com/villers)",
   "Dan Prince <dan@astrealdynamics.co.uk> (https://github.com/danprince)",
    "Kostas Bariotis <konmpar@gmail.com> (https://github.com/kbariotis)",
   "Jerry Xu <jerryxu23@gmail.com> (https://github.com/abalabahaha)",
    "Damian Dlugosz <bigfootdd@gmail.com> (https://github.com/bigfoot90)",
    "Juha Tauriainen <juha@bin.fi> (https://github.com/JuhQ)",
   "Madara Uchiha <me@madara.ninja> (https://github.com/MadaraUchiha)",
   "Keith Groves <Keithalgroves@gmail.com> (https://github.com/buskcoin)",
   "wb9688 <wbertrums@gmail.com> (https://github.com/wb9688)"
  ],
 "dependencies": {
  "babel": "^6.5.2",
  "babel-core": "^6.9.1",
  "babel-loader": "^6.2.4",
  "babel-preset-es2015": "^6.14.0",
  "chai": "^3.5.0",
  "express": "^4.13.4",
  "gulp": "^3.9.1",
  "gulp-babel": "^6.1.2",
  "gulp-jshint": "^2.0.1",
  "gulp-mocha": "^2.2.0",
  "gulp-nodemon": "^2.0.7",
  "gulp-todo": "^4.1.0",
  "gulp-uglify": "^1.5.3",
  "gulp-util": "^3.0.7",
  "jshint": "^2.9.2",
   "mocha": "^2.5.3",
  "node-libs-browser": "^1.0.0",
  "nodemon": "^1.9.2",
  "sat": "^0.5.0",
  "simple-quadtree": "^0.1.3",
  "socket.io": "^1.4.6",
  "socket.io-client": "^1.4.6",
  "sync-request": "^3.0.1",
  "webpack": "^1.13.1",
  "webpack-stream": "^3.2.0",
  "mysql": "^2.5.5",
  "pg": "^6.1.0"
 }
}

Answer 1

好吧，根据您的日志：

Dec 01 11:18:58 masswarfare-dev app/web.1: error: syntax error at or near "SET"

快速扫描Postgres文档告诉我您的查询

INSERT INTO users SET name='joey'

实际上是无效的语法。 SET是一个与UPDATE查询一起使用的命令，而不是INSERT查询。正确的INSERT查询看起来像：

INSERT INTO users (name) VALUES ('joey');

作为旁注，你真的应该尝试在本地运行你的代码，即使它只是你的测试套件，因为它通常更容易提前找到这种东西。

此外，如果您的server.js是1000行，我会认为您做错了。如果您将内容分解为可以编写的较小文件，则代码将更易于维护。我很少滚动文件，也不会超过两页。

Pg不工作heroku

1 个答案: